The Pulitzer Prize-winning journalist whose interview was abruptly cut off Monday after he accused Fox News of “operating as a wing of the Republican Party” is lashing out against the conservative news network a day after the incident.

This time, Thomas Ricks is clashing with the network over an apology he says never happened. The latest round began when Michael Clemente, Fox’s executive vice president of news, claimed Ricks apologized after the interview. But Ricks vehemently denies Clemente’s account. He said Clemente made up the apology because “when the facts aren’t on their side, they attack the person…”